Neuromechanics Laboratory, University of Oregon, Eugene, OR, USA.
Bowerman Sports Science Clinic, Department of Human Physiology, University of Oregon, Eugene, OR, USA.
Sci Rep. 2019 Apr 3;9(1):5568. doi: 10.1038/s41598-019-41750-9.
Progression of age can influence gait characteristics. Previous research has investigated lower extremity joint mechanics between young and elderly people in locomotion, however little is known about whether differences exist between young and middle age people. Ten young healthy subjects (22.8 ± 5.3 years) and ten middle age healthy subjects (50.7 ± 6.0 years) engaged in treadmill walking (from 0.8 to 2.0 m/s) and running (from 1.8 to 3.8 m/s). The middle age group had higher ankle plantar flexor moment angular impulse (p = 0.002), total support moment impulse (p = 0.016), and hip stance positive work (p = 0.029) across walking speeds. Additionally, the middle age group had higher knee flexion angle at ground contact in walking (p = 0.005) and running (p = 0.037). These findings indicate that moderate age affects changes in ankle and hip kinetic characteristics in walking, and knee kinematic patterns in both walking and running.
年龄的增长会影响步态特征。之前的研究已经调查了年轻人和老年人在运动中的下肢关节力学，但对于年轻人和中年人之间是否存在差异知之甚少。10 名年轻健康受试者（22.8±5.3 岁）和 10 名中年健康受试者（50.7±6.0 岁）进行了跑步机行走（从 0.8 到 2.0 m/s）和跑步（从 1.8 到 3.8 m/s）。中年人在整个行走速度范围内具有更高的踝关节跖屈肌力矩冲量（p=0.002）、总支撑力矩冲量（p=0.016）和髋关节站立正功（p=0.029）。此外，中年人在行走（p=0.005）和跑步（p=0.037）中的触地时膝关节屈曲角度更高。这些发现表明，中年会影响行走时踝关节和髋关节动力学特征的变化，以及行走和跑步时膝关节运动模式的变化。
